Dipole Coupling Effect of Holographic Fermion in Charged Dilatonic Gravity
arXiv:1202.6539 · doi:10.1016/j.physletb.2012.04.064
Abstract
In this note, we study the dipole coupling effect of holographic fermion in a charged dilatonic black hole proposed by Gubser and Rocha (arXiv:0911.2898). It is found that the property of Fermi liquid is rigid under perturbation of dipole coupling, and the Fermi momentum is linearly shifted. A gap is dynamically generated as the coupling becomes large enough and the Fermi surface ceases to exist as the bulk dipole coupling further increases.
13 pages, 6 figures, revtex4